公开(公告)号：EP1089275B1

公开(公告)日：2005-06-29

申请号：EP00121575.5

申请日：2000-10-02

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

Inventor： Gotoh, Yoshiho ,  Ueda, Hiroshi ,  Sasaki, Miyuki ,  Fukushima, Yoshihisa

IPC: G11B20/12 ,  G11B27/10 ,  G11B27/034 ,  G11B27/30

CPC classification number: H04N9/8042 ,  G11B20/10527 ,  G11B20/1217 ,  G11B20/1251 ,  G11B20/1252 ,  G11B20/18 ,  G11B27/034 ,  G11B27/105 ,  G11B27/3027 ,  G11B27/329 ,  G11B2020/10537 ,  G11B2020/10675 ,  G11B2020/1074 ,  G11B2020/10759 ,  G11B2020/10805 ,  G11B2020/10814 ,  G11B2020/10916 ,  G11B2020/10944 ,  G11B2020/1224 ,  G11B2020/1285 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2562 ,  G11B2220/2575 ,  H04N5/775 ,  H04N5/85

公开(公告)号：EP1526531A2

公开(公告)日：2005-04-27

申请号：EP04256219.9

申请日：2004-10-08

Applicant: SONY CORPORATION

Inventor： Kobayashi, Shoei c/o Sony Corporation

IPC: G11B20/00

CPC classification number: G11B20/18 ,  G11B20/00086 ,  G11B20/0021 ,  G11B20/00282 ,  G11B20/00376 ,  G11B20/00405 ,  G11B20/00652

Abstract: An information recording and/or reproduction processing apparatus is disclosed by which additional information such as copy protection information is recorded as encrypted data on an information recording medium and also a cryptographic key is recorded such that the difficulty in analysis thereof is promoted. Where additional information such as copy protection information is encrypted and recorded and also a cryptographic key for the encrypted additional information is recorded together, a seed is generated based on an error correction code set corresponding to the additional information. Then, a scrambling or bit position conversion process in which random numbers generated based on the seed are applied is executed for the cryptographic key data, and resulting cryptographic key data is recorded on an information recording medium. Upon such recording, the additional information is recorded as pit information while the cryptographic key data is recorded as wobble data. The cryptographic key has an increased difficulty in analysis and allows achievement of an efficient data reproduction process.

Abstract translation: 一种信息记录和/或再现处理装置，是由盘将附加信息游离缺失：如复制保护信息被记录为加密的数据到信息记录介质上，因此一个密码密钥被记录检查的确在分析的难度其被促进。 其中附加的信息，如复制保护信息被加密和记录，从而对加密的附加信息的密码密钥被记录在一起，种子是基于纠错码生成设置对应于所述附加信息。 然后，加扰或比特位置变换处理，其中随机数产生基于该种子是执行应用的加密的密钥数据，并在信息记录介质所得到的加密密钥数据被记录在。 经调查记录，而加密的密钥数据被记录为摆动数据的附加信息被记录为坑信息。 所述密码密钥具有在分析的难度增加，并允许高效的数据再现过程的实现。

公开(公告)号：EP1524771A1

公开(公告)日：2005-04-20

申请号：EP04735346.1

申请日：2004-05-28

Applicant: Sony Corporation

Inventor： KIKUCHI, Atsushi ,  HATTORI, Masayuki ,  MIYAUCHI, Toshiyuki ,  WATANABE, Kazuo ,  KAN, Makiko

IPC: H03M13/09 ,  H03M13/19 ,  G11B20/18

CPC classification number: H03M13/2906 ,  G11B20/18 ,  G11B20/1866 ,  G11B2020/1836 ,  H03M13/1111 ,  H03M13/1191 ,  H03M13/15 ,  H03M13/1515 ,  H03M13/152 ,  H03M13/2936

Abstract: The present invention relates to a decoding method and a decoder, a program, a recording-and-reproducing apparatus and a method, and a reproducing apparatus and a method that are suitable for decoding encoded data encoded by using a linear code on ring R. A low-density processing unit performs parity-check-matrix low-density processing, performs linear combination for rows of a parity check matrix included in an obtained reception word, and generates a parity check matrix according to the linear-combination result, thereby reducing the density of the parity check matrix used for decoding, at step S21. Then, at step S22, an LDPC decoding unit performs decoding by using a sum product algorithm (SPA) by using the parity check matrix whose density is reduced through the processing performed at step S21. Where the processing at step S22 is finished, the LDPC decoding unit finishes decoding for the reception word. The present invention can be used for an error-correction system.

Abstract translation: 本发明涉及一种解码方法和解码器，程序，记录和再现装置和方法，以及再现设备和方法也适用于通过使用线性码上的环R.编码的编码数据进行解码 低密度处理单元执行奇偶校验矩阵的低密度处理，在获得的接收字包括在执行线性组合为一个奇偶校验矩阵的行和基因率的奇偶校验矩阵雅丁到线性组合结果，从而降低了 用于解码的奇偶校验矩阵的密度，在步骤S21。 然后，在步骤S22中，对LDPC解码单元通过使用奇偶校验矩阵，其密度是通过在步骤S21进行的处理减少使用和积算法（SPA）执行解码。 其中在步骤S22中的处理完成时，LDPC解码单元解码完毕的接收字。 本发明可以用于误差校正系统。

公开(公告)号：EP1503378A2

公开(公告)日：2005-02-02

申请号：EP04254262.1

申请日：2004-07-16

Applicant: Hitachi Global Storage Technologies Netherlands B.V.

Inventor： New, Richard M.H. ,  NG, Spencer W.

IPC: G11B20/00

CPC classification number: G11B20/18 ,  G06F11/1076 ,  G06F2211/1088 ,  G11B20/1833

Abstract: A RAID subsystem with a plurality of hard disk drives has each disk controller autonomously executing data scrubbing on its disks instead of requiring the RAID controller to execute data scrubbing. The data scrubbing may be interrupted upon an I/O request from the RAID controller, or it may continue if a guaranteed scrub rate is not being achieved. Data is stored in large bands of concentric data tracks, and a band may be preferentially selected for scrubbing based on frequency of reading the band, or recency of writing to the band.

Abstract translation: 具有多个硬盘驱动器的RAID子系统具有每个磁盘控制器在其磁盘上自主地执行数据擦除，而不需要RAID控制器执行数据擦除。 数据擦除可能会在来自RAID控制器的I / O请求时中断，或者如果未达到保证的刷新率，则可能会继续执行数据擦除。 数据存储在同心数据磁道的大频带中，并且可以根据读取频带的频率或写入频带的频率优先选择频带进行擦除。

公开(公告)号：EP1460545A2

公开(公告)日：2004-09-22

申请号：EP04006727.4

申请日：2004-03-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： Namkoong, Yun ,  Choi, Hoo-Joong ,  Jeong, Seung-youl

IPC: G06F11/14 ,  G11B20/18

CPC classification number: G11B20/18 ,  G11B2020/10888 ,  G11B2020/183

Abstract: Method and apparatus for retrying reading or writing of data within a limited processing time when the data is a predetermined type of data such as A/V (audio or visual) data. For error correction, any retry of reading or writing of data is performed within a remaining retrying limitation time period if the data is of the predetermined type of data. Thus, even if errors occur continuously, a command for reading or writing of data is executed within a limited time period for real-time data processing to preserve the quality of the predetermined type of data.

Abstract translation: 当数据是诸如A / V（音频或视觉）数据的预定类型的数据时，在有限的处理时间内重试读取或写入数据的方法和装置。 对于错误校正，如果数据是预定类型的数据，则在剩余重试限制时间段内执行读取或写入数据的任何重试。 因此，即使连续出现错误，在有限的时间段内执行用于读取或写入数据的命令用于实时数据处理，以保持预定类型的数据的质量。

公开(公告)号：EP1089442A3

公开(公告)日：2004-09-22

申请号：EP00308174.2

申请日：2000-09-20

Applicant: STMicroelectronics, Inc.

Inventor： Rezzi, Francesco ,  Marrow, Marcus

IPC: H03M13/41 ,  G11B20/18

CPC classification number: G11B20/18 ,  H03M13/41

Abstract: A Viterbi detector receives a signal that represents a sequence of values and recovers the sequence by identifying surviving paths of potential sequence values and periodically eliminating the identified surviving paths having a predetermined parity. By recognizing the parity of portions of a data sequence, the detector more accurately recovers data from a read signal having a reduced SNR and allows an increase in the storage density of a disk drive's storage disk. The detector recovers only sequence portions having a recognized parity such as even parity and disregards sequence portions having unrecognized parities.

公开(公告)号：EP1449210A2

公开(公告)日：2004-08-25

申请号：EP02745730.8

申请日：2002-07-19

Applicant: International Business Machines Corporation

Inventor： BÄCHTOLD, Peter ,  BINNIG, Gerd, K. ,  CHERUBINI, Giovanni ,  DHOLAKIA, Ajay ,  DÜRIG, Urs, T. ,  ELEFTHERIOU, Evangelos, S. ,  LOELIGER, Theodor, W. ,  VETTIGER, Peter

IPC: G11B9/14 ,  G11B9/00 ,  G11B20/10

CPC classification number: B82Y10/00 ,  G11B9/04 ,  G11B9/14 ,  G11B20/18 ,  G11B2005/0021

Abstract: Apparatus for detecting data in a sensor signal generated by a read sensor (10) in a local probe data storage device comprises a differentiation (110) for subtracting a value of the sensor signal from the succeeding value of the sensor signal to generate a ternary difference signal ; and a convertor (120) connected to the differentiator for converting the difference signal into a binary output signal indicative of the detected data. A local probe data storage device comprising such apparatus is also described.

公开(公告)号：EP1232499B1

公开(公告)日：2004-08-25

申请号：EP99962794.6

申请日：1999-11-17

Applicant: EXABYTE CORPORATION

Inventor： MCAULIFFE, Richard H.

IPC: G11B20/18 ,  H03M13/29

CPC classification number: H03M13/09 ,  G11B20/18 ,  H03M13/151 ,  H03M13/1515 ,  H03M13/29 ,  H03M13/2909 ,  H03M13/2918 ,  H03M13/2921 ,  H03M13/293 ,  H03M13/31

公开(公告)号：EP1437713A1

公开(公告)日：2004-07-14

申请号：EP02777800.0

申请日：2002-09-30

Applicant: Sony Corporation

Inventor： INOKUCHI, Tatsuya, SONY CORPORATION

IPC: G10L19/00 ,  H04S1/00 ,  H04H5/00

CPC classification number: G10L19/008 ,  G11B20/00007 ,  G11B20/10527 ,  G11B20/18 ,  G11B2020/1062 ,  H04H20/88 ,  H04S1/007

Abstract: An encoding method comprising the steps of forming a difference signal which is the difference between a first channel signal and a second channel signal of an input PCM signal, encoding the difference signal and the second channel signal with a time difference, dividing a signal which has been encoded with the time difference in the unit of a predetermined number of bits, adaptively encoding the divided data in the unit of the predetermined number of bits, and arranging the adaptively encoded data in a predetermined format.

公开(公告)号：EP1416489A1

公开(公告)日：2004-05-06

申请号：EP02753207.6

申请日：2002-07-26

Applicant: Sony Corporation

Inventor： HIRABAYASHI, Mitsuhiro ,  ARIDOME, Kenichiro ,  ISHIZAKA, Toshihiro

IPC: G11B27/00 ,  G11B20/12 ,  H04N5/76 ,  H04N5/91 ,  G06F12/00

CPC classification number: H04N5/9201 ,  G11B20/18 ,  G11B27/034 ,  G11B27/105 ,  G11B27/329 ,  G11B27/34 ,  G11B2220/216 ,  G11B2220/218 ,  G11B2220/2525 ,  G11B2220/2545 ,  G11B2220/2562 ,  H04N5/772 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8063 ,  H04N9/8205

Abstract: A recording apparatus, a recording method, a recording medium, and an electronic camera which create an index file (IF) for holding index information of a file separately as a fixed data length portion and a variable data length portion and record the index file on the recording medium. The recording apparatus comprises creating means for creating the IF including a plurality of areas to each of which a unique identifier is assigned and recording means for recording the IF on the recording medium, wherein the creating means divides file attribute information into first attribute information of a fixed data length and second attribute information of a variable data length, holds separately a plurality pieces of first attribute information associated with a plurality of files, respectively, and a plurality pieces of second attribute information associated with the plurality of first attribute information, respectively, in the plurality of areas while the plurality pieces of first attribute information are associated with the plurality of files, respectively, and the plurality pieces of second attribute information are associated with the plurality pieces of first attribute information, respectively, and the creating means collects areas of the plurality of areas with a fixed data length as a first area group, and collects areas with a variable data length as a second area group, and holds them in the IF.

Abstract translation: 生成器（15）生成包含分配有唯一标识符的区域的索引文件（IF）。 发生器将文件属性信息划分为固定和可变数据长度，将分割的信息项分解为不同的文件区域，作为固定和可变数据长度区域组。 记录器将IF信息记录到记录介质。 包括以下独立权利要求：（1）文件索引信息记录方法; 和（2）记录介质存储文件索引信息。